waterman



(No Model.)

W. H. W'ATBRMAN.

SEWING MAGHINE. Patented Feb. 23, 1886.

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UNITED STATES PATENT OFFICE.

WILLIAM H. \VATERMAN, OF PROVIDENCE, RHODE ISLAND.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 336,607, dated February23, 1886.

Application filed June 26, 1885. Serial No. l69,805. (No model.)

T or whom it may concern:

Be it known that I, WILLIAM H. WATER- MAN, of Providence, in the Stateof Rhode Island, have made certain new and useful Improvements inSewing-Machines; and I do hereby declare that the followingspecification,

taken in connection with the drawings making a part of the same, is afull, clear, and exact description thereof.

Figure 1 is a top view of a portion of the shuttlebox. Fig. 2 is asection on linezvm. Fig. 3 is a View of the bottom of the shuttleboX.Figs. 4 and 5 are side and top Views, respectively, of the shuttle. Fig.6 is a view of the shuttle-pinion.

My invention is more particularly designed for and adapted to a machinefor sewing leather, known in the market as the What Cheersewingnnachine, which is provided with a horizontal box, within which atone end is located the shuttle device, which is operated by suitablepinions, to which motion is communicated by means of acam through areciprocating rack engaging therewith.

The object of my invention is to so construct the parts that greaterdurabil ty in the machine itself will be secured, together with a moreperfect and satisfactory operation; and it consists in the manner ofstrengthening and securing the shuttle pinion, hereinafter described.

In the drawings, A is the shuttle-box; B, the shuttle; WV, theshuttle-carrier; G, the carrier-pinion; D, a larger pinion which engageswith the carrier-pinion G and the rack E upon the end of thereciprocating rod or bar F, the latter being operated by a suitable cam.

The shuttle-carrier W has a stud, G, around which the smaller pinion, O,is secured. The manner of securing the pinion G to the stud G hasheretofore been to enlarge the diameter of the hole in the former uponone side and force in a wedge, screw, or spline, which would prevent anyrotation upon the latter. The enlargement of such diameter, asdescribed, so weakens the pinion that it often breaks and stops themachine until a new pinion can be procured and adjusted. If, however,the pinion does not break, it frequently becomes loose, which rendersthe machine faulty in its operation and prevents it from doing goodwork.

In my invention I construct the pinion C with a vertical collar, H, bothof which sur' round the stud G, and are secured thereto by a pin orrivet passing through the collar and entering the stud, as will bereadily understood. It will now be seen that the pinion G will bestrengthened instead of weakened, and that, attached in the mannerdescribed, it will be impossible for it to work looseand affect theoperation of the machine.

What I claim as my invention, and desire to secure by Letters Patent,is-

In a sewing-machine, as described, the combination, with the shuttle-boxA, having seats or depressions for the gears and a longitudinal groovefor the rack-bar, of said rack-bar working in said groove,shuttle-holder WV, having an extended stud, G, Jinion O, lying in thedepression in box A, and having an extended collar, H, fitting over studG and extending out past the surface of box A, where it is secured uponsaid stud, and the idler gear or pinion D, connecting rack E and pinionC, also lying in the depression in box A, substantially as set forth.

7 WILLIAM H. WATERMAN.

VVit-nesses:

WALTER B. VINCENT, JAMES D. OHERN.

